Copper Alloy CC330G-ANN vs CC330G-GM
Copper Alloy · CC330G temper comparison
CC330G-ANN and CC330G-GM are two conditions of the same copper alloy grade, CC330G: ANN (annealed) versus GM (permanent mould (chill) cast). The chemistry is identical, so every difference below comes from the condition. CC330G-GM is the stronger of the two: yield strength 220 MPa (31.9 ksi) against 185 MPa (26.8 ksi) for CC330G-ANN, about 19% more; tensile strength follows at 550 MPa (79.8 ksi) vs 480 MPa (69.6 ksi). In exchange, CC330G-ANN is the more ductile: elongation 30% versus 25% for CC330G-GM, and CC330G-GM is harder (120 HB vs 100 HB).
CC330G-ANNChoose it when the part is bent, formed or impact-loaded.
CC330G-GMChoose it when strength drives the design.
CC330G-ANN vs CC330G-GM: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all copper alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 115 GPa16.7 Msi · Shear Modulus 44 GPa6.4 Msi · Bulk Modulus 118 GPa17.1 Msi · Poisson's Ratio 0.33
Physical
Density and transition temperatures.
Same in both: Density 7.6 g/cm³0.27 lb/in³ · Melting Point (Solidus) 1,030°C1,886 °F · Liquidus Temperature 1,050°C1,922 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 400 J/kg·K0.1 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 16.2 µm/m·K9 µin/in·°F · Latent Heat of Fusion 220 J/g94.6 BTU/lb · Max Service Temperature (continuous) 300°C572 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Same in both: Galvanic Potential (seawater, vs SCE) -0.31 V
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Castability 68 / 100 · Brazeability / Solderability 30 / 100 · Polishability 70 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 55 MJ/kg23,646 BTU/lb · Embodied Carbon (primary production) 3.8 kg CO₂/kg · Embodied Water 300 L/kg35.9 gal/lb · Typical Recycled Content 50%
Strength versus weight
Yield strength against density for every copper alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
CC330G-ANN vs CC330G-GM — frequently asked
Is CC330G-GM stronger than CC330G-ANN?
Yes. CC330G-GM has a typical yield strength of 220 MPa (31.9 ksi) against 185 MPa (26.8 ksi) for CC330G-ANN — about 19% more. Tensile strength is 550 MPa (79.8 ksi) vs 480 MPa (69.6 ksi).
Which condition does FabDigit quote by default, ANN or GM?
GS is the default CC330G condition in the FabDigit quote flow (neither ANN nor GM). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
Which is easier to machine, CC330G-ANN or CC330G-GM?
CC330G-ANN, by a small margin. Both rate fair for machinability — 45/100 against 40/100 for CC330G-GM.
Ready to make it?
Upload a CAD file and FabDigit prices the part in CC330G-ANN and CC330G-GM side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.